Any idea how much water I should drain if my 13,000 gallon pool has a CYA of 150? Thx
CYA of 150 in a 13,000 gallon pool
- Thread starter mdavis1008
- Start date
- Jun 22, 2014
- 52,078
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Welcome to TFP! 
Simple CYA math - a 50% water exchange will lower the CYA in half. So if your CYA truly is ~150, exchanging half the water should get you around 75-80.
Simple CYA math - a 50% water exchange will lower the CYA in half. So if your CYA truly is ~150, exchanging half the water should get you around 75-80.
